TY - GEN
T1 - Online optimal power flow with renewables
AU - Kim, Seung Jun
AU - Giannakis, Geogios B.
AU - Lee, Kwang Y.
PY - 2015/4/24
Y1 - 2015/4/24
N2 - Optimal power flow (OPF) is a critical control task for reliable and efficient operation of power grids. Significant challenges are anticipated in the development of future power systems, as a substantial amount of inherently uncertain renewable resources are incorporated, imposing volatile dynamics to the grid. In this work, an online learning approach, which does not require elaborate models for uncertainty, yet is capable of providing a provable performance guarantee, is adopted to tackle the OPF with renewables in an online fashion. A two-stage procedure is considered, where the conventional generation level is committed before the renewable output is revealed, followed by spot market transactions to account for imbalance. Simulated tests with a 30-bus case show that, under high variability of renewables, the proposed hedging scheme beats a static alternative, which solves two OPF problems per time slot.
AB - Optimal power flow (OPF) is a critical control task for reliable and efficient operation of power grids. Significant challenges are anticipated in the development of future power systems, as a substantial amount of inherently uncertain renewable resources are incorporated, imposing volatile dynamics to the grid. In this work, an online learning approach, which does not require elaborate models for uncertainty, yet is capable of providing a provable performance guarantee, is adopted to tackle the OPF with renewables in an online fashion. A two-stage procedure is considered, where the conventional generation level is committed before the renewable output is revealed, followed by spot market transactions to account for imbalance. Simulated tests with a 30-bus case show that, under high variability of renewables, the proposed hedging scheme beats a static alternative, which solves two OPF problems per time slot.
UR - http://www.scopus.com/inward/record.url?scp=84940544996&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84940544996&partnerID=8YFLogxK
U2 - 10.1109/ACSSC.2014.7094462
DO - 10.1109/ACSSC.2014.7094462
M3 - Conference contribution
AN - SCOPUS:84940544996
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 355
EP - 360
BT - Conference Record of the 48th Asilomar Conference on Signals, Systems and Computers
A2 - Matthews, Michael B.
PB - IEEE Computer Society
T2 - 48th Asilomar Conference on Signals, Systems and Computers, ACSSC 2015
Y2 - 2 November 2014 through 5 November 2014
ER -